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Our Team

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Osvaldo Contreras Strauch

Graduated in Legal and Social Sciences, University of Chile. He obtained his Law Degree in 1969.
He completed postgraduate studies at the University of California, at the Los Angeles and Davis campus, and at the University of the Basque Country, obtaining the academic degrees of Magister and Bachelor of International Transactions.

Professor of Commercial Law, he is the author of dozens of law books. Amongst his published works we can highlight “Insurance Law” (three editions), “Maritime Law” (two editions), “Commercial Law Institutions” (four editions) ), “Insolvency and Bankruptcy” and “Jurisprudence on Insurance. Collection and Analysis”. He is also the author of more than 200 articles and reports in law on matters of his specialty, many of them published both in Chile and abroad, in particular on Insurance, Bankruptcy, Civil Liability and Maritime Law. On these same subjects, he has given talks, conferences and participated in seminars, colloquia and congresses organized in more than twenty countries. Founder of the Chilean Magazine of Insurance Law.

He has been Professor of Commercial Law at the Diego Portales University and of Economic Policy at the University of Chile. He has integrated the Santiago Court of Appeals for several periods. He is the author of several bills on matters pertaining to Commercial Law, particularly the bill that entered the National Congress as a parliamentary motion and gave rise to Law 20,667 of May 9, 2013, which substantially modified the regulations on the insurance contract.

Member of the Chilean Bar Association, the Chilean Association of Maritime Law, the Institute of Judicial Studies, the Institute of Commercial Law, the International Association of Insurance Law, of which he is currently Counsellor of the Presidency and President of the Working Group on Civil Liability Insurance. He is also Director and member of the Arbitration Corps of the Iberolatinoamerican Arbitration Center on Insurance and Reinsurance (ARIAS LatAm).

He was the founder of the Law Firm Contreras & Cía., Where he works as a senior partner and specialist in Commercial Law, Insurance and Civil Liability. He has extensive experience in litigation and arbitration (both domestic and international) in matters of his specialty.
Languages: Spanish, English, German and French.

Osvaldo Contreras Buzeta


Bachelor´s in Legal and Social Sciences, Universidad Diego Portales. Approved with Distinction.

Lawyer title granted by the Excellent Supreme Court, year 2010

Diploma in Labor Law, Procedural Reform and Litigation, Universidad Diego Portales.

Master (LL.M.) International Commercial Law. Exeter University (Devon, England).

Assistant professor in procedural law, Diego Portales University.

Foreign attorney Chadbourne & Parke LL.P 2014-2015, London, England.

His thesis was focused on the area of commercial law, entitled “Non-contractual Civil Liability and Claims Made Coverage” (2007), published and available in the library of the Faculty of Law of the Diego Portales University.

In 2010 he worked as an associate attorney at Estudio Carvallo Abogados in the litigation area, focusing on civil, commercial and insurance matters.

Coordinator and co-author of “Insurance and Reinsurance Law in Latin America” (Editorial Tirant Lo Blanch, year 2019), work dedicated to the comparative study of legislation, regulation and legal criteria that different Latin American jurisdictions deal with on various topics of interest in the insurance and reinsurance area.

In Contreras & Cia. he focuses his area of practice in litigation arbitration and dispute resolution in the areas of civil, commercial, labor, and consumer rights protection, with special knowledge in insurance and civil liability. 

Member of the Colegio de Abogados A.G.

Member of AIDA-Chile

Languages: English and Spanish.

Jaime Apparcel Carrillo


Gerente General – jaime.apparcel@contreraslex.cl

Bachelor´s in Legal and Social Sciences, Universidad Diego Portales. 

Lawyer Title granted by the Excellent Supreme Court. Year 2011.

Postgraduate Diploma in Real Estate Business Law at Universidad de los Andes, 2013.

Postgraduate studies in Business Law at Universidad Diego Portales, 2012-2013. Approved with distinction.

In 2016 he graduated as an International Business Mediator from the Mediator Institute of Ireland in the Republic of Ireland, working as a foreign lawyer at the Mc Mahon & Associates law firm in the same country.

Between 2011 and 2014 he worked as a corporate lawyer in the area of ​​Acts and Contracts in Corplegal, providing legal advice required by CorpBanca and companies belonging to CorpGroup, focusing on real estate, commercial and banking matters.

Between 2014 and 2015, he worked as an associate lawyer at Estudio Carvallo and Legaltec Servicios Inmobiliarios (both part of Holding Carvallo) where he focused his practice on negotiation of acts and contracts, capital increases, shareholders meetings, corporate structuring and powers, preparation of credit contracts and study of titles.

He joined Contreras y Cia abogados in 2016 in the areas of insurance, Real State, Subdivisions, company law, Hereditary Law and civil and commercial contracts, mediations.

Since 2020 he has become General Manager. 

Languages: Spanish, English, French.

José Manuel Madero Escudero

Bachelor´s in Legal and Social Sciences, Adolfo Ibañez University.

Lawyer Title granted by the Excellent Supreme Court. Year 2009.

Between 2010 and 2020 he worked at Carvallo Law Firm, focusing his professional practice on insurance, reinsurance and litigation.

He has advised foreign reinsurers, local insurers, liquidators and insurance brokers on matters pertaining to their business.

He has experience in the judicial and nonjudicial management of legal recoveries of property and guarantees, consumer collective actions, bankruptcy procedures and arbitrations.

Member of the Valparaíso Bar Association and the Association of Insurance Lawyers (AIDA – Chile).

Diploma in Insolvency and Re-entrepreneurship -Universidad del Desarrollo (2020)

Languages: Spanish, English

Iván Larenas Lolas

Bachelor´s in Legal and Social Sciences, Universidad Diego Portales. Approved with Distinction.

Lawyer title granted by the Excellent Supreme Court, year 2012.

Postgraduate Diploma in Natural Resources and Energy, Mention in Energy, Pontificia Universidad Católica de Chile.

Master of Laws (LL.M.) University College London (UCL), London, UK.

Iván has worked in various law firms in the areas of dispute resolution, litigation and arbitration, civil liability, international commerce and corporate matters. In addition, he has served alternately as Public Notary and Conservador.

He is a professor in the field of alternative conflict resolution and arbitration at  Universidad Mayor, associate member of CIArb (Chartered Institute of Arbitrators) and a pro-bono consultant on international and environmental law matters at the Department of Environment and Human Health of Colmed Chile A.G.

He joined Contreras y Cia. Abogados in May 2020 in the areas of litigation and dispute resolution, arbitration (domestic and international), commerce, civil liability, insurance, transport of goods and customs.

Languages: Spanish, English and Italian.

Andrés Maira Cuevas

Bachelor of Law and Social Sciences from the Pontificia Universidad Católica de Chile, approved with distinction.

Lawyer Title granted by the Most Excellent Supreme Court; 2016.

He has worked mainly in areas of Private Law, in charge of processing civil contentious matters. He completed his professional practice at the Legal Assistance Corporation, being evaluated with the highest grade.

He has participated in multiple exhibitions and seminars given by his house of studies and by the University of Chile, among which are specialization courses in Real Estate Law, Water Law and Research Seminars in Procedural Law.

Practice areas litigation and dispute resolution, civil liability, real estate and company law.

Member of the A.G

Languages: Spanish, English

María Ignacia Viveros Rueda

Bachelor´s in Legal and Social Sciences, Universidad Diego Portales. Degree approved with Distinction.

Lawyer title granted by the Supreme Court of Chile, year 2018.

Diploma in “Pharmaceutical Regulatory Affairs in Pharmaceutical, Biological and Cosmetic Products”, Universidad de Chile. (2020)

For her professional internship she chose the Human Rights Office, in matters of Military Justice.

She previously worked at Estudio Schweitzer and Cía. (2014) in the litigation area, focusing on civil and constitutional matters. She worked as well at Estudio Bofill, Mir & Álvarez Jana Abogados (2015-2018) in the litigation area, in civil and arbitration procedures, related to insolvency and bankruptcy, real state, asset division and construction. 

Her thesis, focused on the field of ​​procedural law, entitled “Procedencia de recursos de protección contra resoluciones judiciales”(2016).

She joined Contreras y Cia. Abogados in May 2020 focusing her work on litigation and dispute resolution in the fields of business law and bankruptcy law and in charge of the development of competition law, regulatory law and public procurement practices. 

Languages: English and Spanish.